Russian luxury accessory manufacturer Caviar has introduced a luxury line of premium iPhone XS Max devices that have received an external upgrade with precious metals and diamonds, including a model that uses solid gold and sells for over $ 15,000.

Caviar's Maximum Collection are all based on the iPhone XS Max, where the company chooses to offer only the models with the highest 512 GB capacity in its range. The iPhones themselves are exactly the same as the standard models, except the rear housing, which is replaced by one of a number of scaled up versions to make them a more luxurious device.

The Maximum Invincible model is billed as a design that is reminiscent of durable objects, such as a tank or armor, with fake nails and plates on the back. The housing is made of a 1 mm hardened titanium plate, which is claimed to stop a bullet.

Using carbon instead of glass on the rear panel, the Maximum Ultralight is lighter than the standard iPhone XS Max, making the unit 8 grams lighter than the model supplied by Apple. The back uses a structured diamond pattern, which according to the company is a special style & # 39; gives.

At the more expensive end of the range, the version with maximum diamonds is a combination of black PVD coating and diamonds, where 400 of the gems are arranged in a pattern on the back of the iPhone.

There are two gold models in the collection, with the Maximum Gold with a gilded housing, while the Maximum Fine Gold version is made of a solid gold panel with a weight of 150 grams.

The Caviar Maximum range starts from $ 5,200 for the Maximum Ultralight, with the Invincible selling for $ 5,500 and the Maximum Diamonds for $ 9,890. The maximum gold costs $ 5,960, and the maximum fine gold is the most expensive at $ 15,340.

All models are supplied in a wooden lacquered housing covered with black velvet, authenticity and company guarantee certificates, a USB cable and a charger. Obviously, there is no way to get service at an Apple store given the adjustments to the device that Caviar has made.